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Home >> Infiniti >> 2012 >> QX56 AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Introduction (For MEXICO) >> System Description >> System >> Air Conditioning Cut Control >> AIR CONDITIONING CUT CONTROL: System Description >> Input/Output Signal Chart
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Input/Output Signal Chart

Sensor Input signal to ECM ECM function Actuator
Crankshaft position sensor
Camshaft position sensor
Engine speed(2) Air conditioner cut control IPDM E/R
โ†“
A/C relay
โ†“
Compressor
Engine coolant temperature sensor Engine coolant temperature
Accelerator pedal position sensor Accelerator pedal position
Battery Battery voltage(2)
Refrigerant pressure sensor Refrigerant pressure
Power steering pressure sensor Power steering operation
A/C auto amp. A/C ON signal(1)
A/C evaporator temperature(1)
Target A/C evaporator temperature(1)
Blower fan ON signal
Combination meter Vehicle speed(1)
(1) This signal is sent to the ECM via the CAN communication line.
(2) ECM determines the start signal status by the signals of engine speed and battery voltage.